Transaction review
Read the request before you sign.
Decode three common token-call shapes offline and compare the recipient, spender and amount with your own expectations.
Open Call LensLocal processing · No account · No wallet connection
Your call lens worksheet
Edit the form or import the example-shaped JSON. Input reference
Inputs stay in this tab and clear on reload. No automatic upload or wallet access. Maximum 128 KiB.
Report text for manual copy
From your records to a reviewable result
- Copy a prepared call from a source you already control. Do not paste private keys or seed phrases.
- Enter the expected destination and atomic-unit limit from your intended action.
- Review differences and use your trusted wallet/simulator for the actual decision.
Where this tool fits
A no-wallet, exact-amount second look at a prepared call, with explicit unsupported states and a portable review report.
Scope: No chain simulation, malicious-contract detection, token identity lookup, balance inspection or safety verdict.
钱包调用解释：可直接使用表单，也可导入 JSON。先运行虚构示例理解结果，再切换到自己的材料。输入仅在当前页面处理。查看中文说明。
Compare with established tools
A real security product or simulator has chain context this decoder lacks. A known selector and an empty flag list cannot show that a contract is safe.
Official product descriptions reviewed 19 September 2026. These are alternatives, not partners or endorsements.
- Blockaid
Onchain security, transaction protection, monitoring and threat intelligence.
- Tenderly
Transaction simulation with decoded traces, gas estimates and asset changes.
- ERC-20 specification
Defines fungible-token transfers and allowances; implementation behavior still matters.